Linux 101

1. The system displays the following message when you attempt to log in an incorrect password: Login incorrect a. This message does not indicate whether your user name, your password, or both are invalid. Why does it not reveal this information?
For security purposes – to discourage unauthorized people from guessing names or password to gain access to the computer. b. Why does the system wait for a couple of seconds to respond after you supply an incorrect username or password?
To stop others from cracking the system 2. Give three examples of poor password choices. And what is wrong with each.
Tawana Johnson - name is very easy to figure out
Tawana 72788 – name and birthday-can figure out
Johnson - too short and easily figured out because last name 3. Is Fido an acceptable password? No
Why not? Too short – easily detected 4. What is a context menu?
A menu in a graphical user interface that appears upon user interaction. How does a context menu differ from other menus? A context menu has choices that apply specifically to the window you are in. 5. What appears when you right-click the root window? How can you use this object?
Shortcut menu to get to windows quicker 6. How would you swap the effects of the right and left buttons on a mouse?
The Mouse preferences window enables you to change your mouse from right to left click. What is a drag a drop-and-drop threshold?
It tells you how far you must drag before the systems the systems consider the drag part of drag and drop. How
How would you change it? From the mouse preference window.

7. What is the primary function of the main menu?
To organize the types of interactions that is possible between the user and the computer. 8. Describe three ways a. Change a size of a window - position the mouse on the corner of the Window and drag. -Right-clicks windows toolbar and select Resize, and make window the size you Want. -click maximum bar on title bar. b. Delete a window -click the close window on title bar and Right click close. -from windows list menu -terminate the window that is running
9. What are the functions of a windows operation menu? To size, remove or move 10. What is a panel? A bar that appears on the desktop and holds objects, initially there are two gray panels, the top panel and the bottom Panel holding several objects. 11. What are tooltips? And how are they useful?
A small box that appears near an object in a graphical user interface when a pointer or cursor controlled by a mouse passes over it which will contain a brief text message.
It explains what the object is therefore helping you to use it.…...

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CIS 155
Victor Gaines
Dr. Weidman
December 19, 2012
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IT250 |
Linux Operating System: Assignment 1.1 |
3/30/2013 |
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...Chapter 1
1. Free software is software that users have the freedom to distribute and change. The three main characteristics of free software are: The source code has to be distributed with the program, you cannot restrict people from redistributing/modifying/using the software, and users must be allowed to redistribute modified versions under the same terms/licensing.
4. The Free Software Foundation is the sponsor of the GNU Project. GNU developed many of the tools that are part of Linux.
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Chapter 2
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Chapter 3
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4. 3 different hardware platforms that has been ported onto are power-PC apple computers (ppclinux), Compaq’s (nee digital equipment corporation) alpha based machines, also its not just for single processor machines as of verison2.0, it runs on multiple processor mahines.
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Praise for Previous Editions of A Practical
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®
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...University of Sunderland
School of Computing and Technology
File Management System in Linux CUI Interface
A Project Dissertation submitted in partial fulfillment of the
Regulations governing the award of the degree of BA in
Computer Studies, University of Sunderland 2006
I. Abstract
This dissertation details a project to design and produce a prototype Linux character environment file manipulation assisting application. The application is offering a friendly menu driven interface to handle the jobs that non-programmers keep finding cumbersome to master when it comes to working in a Unix/Linux interface, resulting in serious mistakes and much loss of productive time. The Linux File Management System is a basic program for every user at a Unix/Linux terminal. Advantages here include the fact that the support team does not have to be burdened with solving simple file based queries by the employees. The areas of Designing GUI interfaces in Linux and Windows versus Linux Security were researched and a prototype has been designed, developed and tested. An evaluation of the overall success of the project has been conducted and recommendations for future work are also given.
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II. Table of Contents
1) Introduction.................................................................................................................................4
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...What is free software? List three characteristics of free software.
1- Distribution
2- Development
3- Collaboration.
2. Why is Linux popular? Why is it popular in academia?
Because of it portability and it is free as Free Expression easy to manipulate and transport.
Because of its portability and easy to manipulate.
3. What are multiuser systems? Why are they successful?
Multi-user are the several individual user that can access one system that being physical machine or VM.
They are popular because it help to centralize resources and energies and minimize security concerns.
4. What is the Free Software Foundation/GNU? What is Linux? Which parts of the Linux operating system did each provide? Who else has helped build and refine this operating system?
The Free Software Foundation (www.fsf.org) is the principal organizational sponsor of the GNU Project. GNU developed many of the tools, including the C compiler, that are part of the NU/Linux Operating System.
Linux is the name of an operating system kernel developed by Linus Torvalds and expanded and improved by thousands of people on the Internet. Torvalds’s kernel and GNU’s tools work Together as the GNU/Linux Operating System.
5. In which language is Linux written? What does the language have to do with the success of Linux?
Linux was written in C language.
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...Carlos Espiritu
12/10/11
Week 1 homework
Page 19
1. What is free software? List three characteristics of free software.
Free software includes GNU/Linux, Apache, and some examples of free applications are: KDE, OpenOffice.org. all these application can be used for router/mobile phones..Etc. Linux is free and price plays a roll but not so crucial as other OS. Also source code is available, and software can be used for any purpose, also can be studied and changed. Linux software can be distributed and changed versions as well.
2. What are multiuser sytems? Why are they successful?
A multiuser system allows each user at their work terminals to be connected to the computer. The operating system of computer assigns each user a portion of RAM and drives the computer’s time among various users; it is also called time sharing system. In other words, a multiuser system allows many users to simultaneously access the facilities of the host computer. This type of system is capable of having 100’s of users use this computer at once. The commonly used multiuser systems are: 1. LOCAL AREA NETWORK 2. WIDE AREA NETWORK 3. METROPOLITAN AREA NETWORK.
3. In what language is linux written? What does the language have to do with the success of linux?
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